CN112682688A - Full-composite material air bag type pressure tank and manufacturing method thereof - Google Patents

Full-composite material air bag type pressure tank and manufacturing method thereof Download PDF

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Publication number
CN112682688A
CN112682688A CN202011551294.9A CN202011551294A CN112682688A CN 112682688 A CN112682688 A CN 112682688A CN 202011551294 A CN202011551294 A CN 202011551294A CN 112682688 A CN112682688 A CN 112682688A
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CN
China
Prior art keywords
air bag
elbow
lining
connecting port
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202011551294.9A
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Chinese (zh)
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CN112682688B (en
Inventor
吕广普
张立君
杜泽强
张超纲
胡亮
刘洪上
杜相荣
李冬霜
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Xian Sunward Aerospace Material Co Ltd
Original Assignee
Xian Sunward Aerospace Material Co Ltd
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Publication date
Application filed by Xian Sunward Aerospace Material Co Ltd filed Critical Xian Sunward Aerospace Material Co Ltd
Priority to CN202011551294.9A priority Critical patent/CN112682688B/en
Publication of CN112682688A publication Critical patent/CN112682688A/en
Priority to JP2022573225A priority patent/JP7421665B2/en
Priority to PCT/CN2021/124987 priority patent/WO2022134799A1/en
Priority to US17/945,061 priority patent/US11988333B2/en
Application granted granted Critical
Publication of CN112682688B publication Critical patent/CN112682688B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/70—Completely encapsulating inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E03B11/08—Air regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2623/04—Polymers of ethylene
    • B29K2623/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B2011/005—Tanks with two or more separate compartments divided by, e.g. a flexible membrane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/018—Shape variable with bladders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0621—Single wall with three layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F17C2209/2127—Moulding by blowing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The invention discloses a full composite material air bag type pressure tank and a manufacturing method thereof, and aims to resist pressure and corrosion, solve the problems of easy corrosion of a shell, easy damage of an air bag and short service life of the air bag, and the pressure tank is simple in manufacturing process and comprises a shell and the air bag arranged in the shell, wherein the shell comprises a lining and glass fibers wound and arranged on the outer side of the lining, the lining is made of PE (polyethylene), the lining is provided with a first connecting port and a second connecting port, the air bag is positioned in an inner cavity of the lining and is arranged at intervals with the inner wall of the lining, the air bag is made of polyurethane, the air bag is integrally formed and communicated with an air nozzle, the air nozzle is spliced and hermetically fixed on the first connecting port, the second connecting port is fixedly connected with an elbow, and the first end of the elbow is communicated with the inner cavity of the lining through the second connecting, the second end of the elbow is communicated to the pipeline.

Description

Full-composite material air bag type pressure tank and manufacturing method thereof
Technical Field
The invention relates to the technical field of air bag type pressure tanks, in particular to an air bag type pressure tank made of a full composite material and a manufacturing method thereof.
Background
Air bag formula overhead tank mainly uses the steel shell as the body among the prior art, and built-in rubber material gasbag according to Bohr's law PV ═ C, and the volume diminishes pressure and risees after gas receives the compression, stops intaking when gas pressure reaches the unanimity with water pressure in the overhead tank, when water loss pressure reduces, gas pressure is greater than the pressure of water in the overhead tank, and gas expansion extrudes the water in the overhead tank of gasbag at this moment and mends to the system, stops the drainage when gas pressure reaches the unanimity with water pressure. The method is mainly applied to system pressure fluctuation and partial water supply. The air bag type pressure tank has the defects that a steel shell is easy to rust in application, and a rubber air bag is easy to damage and is frequently replaced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the full-composite material air bag type pressure tank and the manufacturing method thereof, the pressure tank is resistant to pressure and corrosion, the problems that the shell is easy to corrode, the air bag is easy to damage and the service life is short are solved, and the manufacturing process is simple.
In order to achieve the above purpose, the present invention provides an air bag type pressure tank made of a fully composite material, which includes a shell and an air bag arranged in the shell, wherein the shell includes a lining and glass fibers wound on the outer side of the lining, the lining is made of PE, the lining has a first connector and a second connector, the air bag is located in an inner cavity of the lining and is arranged at an interval with the inner wall of the lining, the air bag is made of polyurethane, the air bag is integrally formed and communicated with an air tap, the air tap is inserted and sealed and fixed to the first connector, the second connector is fixedly connected with an elbow, a first end of the elbow is communicated with the inner cavity of the lining through the second connector, and a second end of the elbow is communicated with a pipeline.
Further, gasbag integrated into one piece is provided with the fixed column, the fixed plate that is provided with of first end of elbow, the fixed column is fixed peg graft in the fixed plate.
Further, the first end of elbow is provided with the bayonet socket, the fixed plate with the bayonet socket joint.
Further, the second connector is provided with an internal thread, the first end of the elbow is provided with an external thread, and the elbow and the second connector are in threaded connection through the external thread and the internal thread.
Furthermore, the first connecting port is arranged at the top of the lining, the second connecting port is arranged at the bottom of the lining, the bottom of the shell is provided with supporting legs, and the shell is fixedly supported on the supporting legs.
Further, the second connector is provided with an outer edge, the supporting leg is fixedly provided with a fixing sleeve, and the fixing sleeve is arranged on the outer edge.
Further, a sealing gasket is arranged in the first connecting port, and the air faucet is fixedly connected with the first connecting port and the sealing gasket through bolts.
Further, the maximum using pressure of the shell is 1.0MPa, and the maximum using pressure of the air bag is 0.2 MPa.
Further, the distance between the inflated air bag and the inner wall of the lining is 4.5-5.5 mm.
The invention also provides a manufacturing method of the full composite material air bag type pressure tank, which comprises the following steps: firstly, the air bag is manufactured by adopting hollow blow molding and integral molding, and the air nozzle and the air bag are connected by adopting injection molding and integral molding; then, integrally forming a lining with a first connecting port and a second connecting port by adopting hollow blow molding, and winding glass fibers on the outer wall of the lining to form a shell; secondly, placing the uninflated air bag in the lining and fixing the air bag, wherein the air nozzle penetrates through the first connector and is fixed in a sealing manner, and the elbow is fixedly communicated with the second connector; and finally, filling pressure inert gas into the air bag through the air tap, and connecting the elbow into the pipeline.
Compared with the prior art, the invention adopts PE high-density polyethylene as the lining, and the glass fiber is wound on the outer side of the lining, thereby forming the shell consisting of the PE lining and the glass fiber, greatly improving the service pressure of the shell, adopting polyurethane as the material for the air bag, and integrally forming, communicating and connecting the air nozzle and the air bag, thereby ensuring the integral sealing property and the pressure resistance of the air bag, greatly improving the service pressure of the air bag, ensuring a certain gap between the air bag and the inner wall of the lining, forming a water flow channel to ensure the smooth passing of water flow when the water pressure and the air pressure are balanced, and communicating the elbow with the inner cavity of the lining through the second connector, and communicating the elbow to a system pipeline needing pressure balancing and water replenishing. Therefore, the full composite material air bag type pressure tank has the advantages of pressure resistance, corrosion resistance, damage resistance, long service life and the like.
Further, the gasbag sets up the fixed column through integrated into one piece, and the elbow is fixed to be set up the fixed plate, utilizes the fixed column fixed grafting in the fixed plate to be fixed in the inside lining with the gasbag, fixed firm stable, and the elbow passes through the bayonet socket joint with the fixed plate and fixes, and is fixed reliable, and easy to assemble dismantles, and in addition, elbow and second connector threaded connection have guaranteed the sealed and connection steadiness that both connect.
Further, the bottom of shell is passed through the landing leg and is supported, guarantees the position steadiness of shell, and the landing leg is fixed cup jointed in the outer edge of second connector through fixed cover, has guaranteed the steadiness that shell and landing leg are connected more.
The manufacturing method of the invention adopts hollow blow molding to manufacture the air bag in an integrated manner, and the air nozzle and the air bag are connected in an injection molding and integrated manner, thus fully ensuring the integral sealing property and pressure resistance of the air bag.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
wherein, the device comprises an elbow 1, a supporting leg 2, a lining 3, a glass fiber 4, an air bag 5, a first connecting port 6, an air tap 7, a fixing plate 8, a second connecting port 9, a loose joint 10, a sealing gasket 11, a bolt 12 and a fixing column 13.
Detailed Description
The present invention will be further explained with reference to the drawings and specific examples in the specification, and it should be understood that the examples described are only a part of the examples of the present application, and not all examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the invention provides a full composite material air bag type pressure tank, wherein an air bag 5 and a shell in the pressure tank are both made of composite materials, and the pressure tank is mainly used for central air conditioners, boilers, water heaters, variable-frequency and constant-pressure water supply equipment, and has the functions of buffering system pressure fluctuation, eliminating water hammer, and playing roles of pressure stabilization and unloading and small amount of water supplement at night.
Referring to fig. 1, an embodiment of the present invention specifically includes: the shell with set up gasbag 5 in the shell, the shell includes inside lining 3 and winding and sets up in the glass fiber 4 in the outside of inside lining 3, inside lining 3 is the PE material, inside lining 3 has first connector 6 and second connector 9, gasbag 5 is located the inner chamber of inside lining 3, and set up with the inner wall interval of inside lining 3, gasbag 5 is the polyurethane material, 5 integrated into one piece intercommunications of gasbag are connected with air cock 7, air cock 7 pegs graft and sealed being fixed in first connector 6, second connector 9 fixedly connected with elbow 1, the first end of elbow 1 passes through the inner chamber intercommunication of second connector 9 with inside lining 3, the second end intercommunication of elbow 1 to the pipeline.
It can be understood that this embodiment adopts PE high density polyethylene as inside lining 3, and twine glass fiber 4 in the outside of inside lining 3, thereby form the shell that comprises PE inside lining 3 and glass fiber 4, the service pressure of shell has been improved greatly, gasbag 5 adopts polyurethane to be the material, and air cock 7 is connected with gasbag 5 integrated into one piece intercommunication, thereby 5 whole leakproofness of gasbag and resistance to pressure have been guaranteed, the service pressure of gasbag 5 has been improved greatly, and the inner wall interval of gasbag 5 and inside lining 3, guarantee certain clearance, form the rivers passageway, the smooth of rivers when guaranteeing water pressure and atmospheric pressure balance, and utilize elbow 1 to communicate through the inner chamber of second connector 9 with inside lining 3, and elbow 1 communicates to in the system pipeline that needs carry out pressure balance and moisturizing. The whole not only has withstand voltage corrosion resistant characteristic of shell, and the quality is light moreover, and inside sanitation and hygiene, gasbag 5 adopt polyurethane material integrated into one piece, and leakproofness and compressive property are better to, the full combined material gasbag formula pressure tank of this embodiment has withstand voltage corrosion resistant, should not damage, advantages such as long service life.
Specifically, gasbag 5 integrated into one piece is provided with fixed column 13, and the fixed plate 8 that is provided with of first end of elbow 1, fixed column 13 are fixed pegging graft in fixed plate 8. Preferably, the first end of the elbow 1 is provided with a bayonet, and the fixing plate 8 is clamped with the bayonet. Preferably, the second connection port 9 is provided with an internal thread, the first end of the elbow 1 is provided with an external thread, and the elbow 1 is screwed with the second connection port 9 through the external thread and the internal thread. The second end of the elbow 1 is sleeved with a loose joint 10, and is connected with a system pipeline through the loose joint 10.
In this embodiment, gasbag 5 sets up fixed column 13 through integrated into one piece, and elbow 1 is fixed to be set up fixed plate 8, utilizes fixed column 13 fixed grafting in fixed plate 8 to be fixed in inside lining 3 with gasbag 5, fixed firm stability, and elbow 1 passes through the bayonet socket joint with fixed plate 8 and is fixed, and is fixed reliable, and easy to assemble dismantles, and in addition, elbow 1 and second connector 9 threaded connection have guaranteed the sealed and connection steadiness that both connect.
Specifically, the first connection port 6 is disposed at the top of the lining 3, the second connection port 9 is disposed at the bottom of the lining 3, the bottom of the outer shell is provided with the support legs 2, and the outer shell is fixedly supported on the support legs 2. The second connection port 9 is provided at the bottom of the liner 3 so as to facilitate the flow of water into and out of the liner 3. Preferably, the second connection port 9 has an outer edge, and the support leg 2 is fixedly provided with a fixing sleeve, which is fixedly arranged on the outer edge. Landing leg 2 adopts the PP material through the mode integrated into one piece of moulding plastics, design door opening and fixed cover on the landing leg, elbow 1 passes door opening and 9 threaded connection of second connector, the bottom appearance looks adaptation of the up end appearance of landing leg 2 and shell to make the shell support when landing leg 2, both laminate reliably, the shape of the shell of this embodiment is roughly cylindricly, the bottom of shell is the arc, the up end of landing leg 2 is equipped with the cambered surface with shell looks adaptation correspondingly. The bottom of shell is passed through landing leg 2 and is supported, guarantees the position steadiness of shell, and landing leg 2 connects in the outer edge of second connector 9 through fixed cover, has guaranteed the steadiness that shell and landing leg 2 are connected more. Elbow 1 adopts CPVC to mould plastics integrated into one piece to the external screw thread bottom of elbow 1's first end has designed the extension limit, can with landing leg 2 fixed connection.
Preferably, a sealing gasket 11 is arranged in the first connecting port 6, and the air faucet 7 is fixedly connected with the first connecting port 6 and the sealing gasket 11 through a bolt 12 so as to ensure the sealing performance and the stability of the air faucet 7 and the air bag 5 in the inner lining 3. The gasket 11 is a rubber gasket.
In this embodiment, the maximum working pressure of the outer shell reaches 1.0Mpa, the maximum working pressure of the airbag 5 reaches 0.2Mpa, and in order to ensure the smooth movement of water flow, the distance between the inflated airbag 5 and the inner wall of the liner 3 is 4.5-5.5 mm, preferably 5 mm.
The invention also provides a manufacturing method of the full composite material air bag type pressure tank, which comprises the following steps: firstly, the air bag 5 is manufactured by adopting hollow blow molding and integral molding, and the air nozzle 7 and the air bag 5 are connected by adopting injection molding and integral molding; then, integrally forming the inner liner 3 with a first connecting port 6 and a second connecting port 9 by adopting hollow blow molding, and dipping and winding the glass fiber 4 on the outer wall of the inner liner 3 to form a shell; secondly, placing and fixing the uninflated air bag 5 in the lining 3, wherein an air nozzle 7 penetrates through the first connecting port 6 and is fixed in a sealing way, and the elbow 1 is fixedly communicated with the second connecting port 9; finally, the air bag 5 is filled with inert gas under pressure through an air tap 7, and the elbow 1 is connected into the pipeline.
The preparation method specifically comprises the following steps:
1. manufacturing an air bag 5: the air bag 5 is integrally formed by hollow blow molding by using polyurethane materials, the air nozzle 7 and the air bag 5 are bonded by an injection molding process, a fixing column 13 is integrally formed at the bottom of the air bag 5, and a fixing plate 8 is designed;
2. manufacturing a shell: the lining 3 is made of PE material, hollow blow molding is selected for integral molding, and a first connecting port 6 and a second connecting port 9 are formed in an integral molding mode, the first connecting port 6 and the second connecting port 9 are both provided with outward outer edges, and inner threads are arranged on the inner wall of the second connecting port 9; continuously winding and forming the glass fiber 4 on the outer side of the lining 3 after gum dipping to form a shell;
3. manufacturing the supporting leg 2: the landing leg 2 is integrally formed by PP materials in an injection molding mode, and a door opening and a fixing sleeve are designed on the landing leg;
4. manufacturing a threaded elbow 1: the first end of the elbow 1 is provided with an external thread and a bayonet, and the second end is provided with an external thread for installing the loose joint 10;
5. integral installation: placing the air bag 5 in the inner liner 3 in an uninflated state, wherein the air nozzle 7 penetrates through the first connecting port 6 and is fixed by using a bolt 12, and the upper part of the air nozzle is sealed by using a sealing gasket 11; the fixing column 13 of the air bag 5 penetrates through the fixing plate 8, and the fixing plate 8 is clamped on the bayonet of the elbow 1; the elbow 1 penetrates through a door opening of the supporting leg 2, the fixing sleeve of the supporting leg 2 is sleeved on the outer edge of the second connecting port 9, and the external thread of the elbow 1 is screwed into the internal thread of the second connecting port 9;
6. after the installation is completed, the air bag 5 is filled with inert gas with the pressure less than or equal to 26psi according to the use condition, and the whole air bag type pressure tank is connected into a system pipeline by using the loose joint 10.
In the embodiment of the invention, high-density polyethylene is used as the inner liner 3 of the pressure tank, and the glass fiber 4 is wound uninterruptedly, so that the maximum service pressure of the formed pressure tank shell can reach 1.0 MPa. The built-in air bag 5 is made of polyurethane and integrally formed by hollow blow molding, the air nozzle 7 and the air bag 5 are connected by injection molding, the integral sealing performance and pressure resistance of the air bag 5 are guaranteed by combining the two processes, and the use pressure can reach 0.2 MPa. The gap between the inflated air bag 5 and the inner wall of the lining 3 is about 5mm, so that smooth passing of water flow can be ensured when the water pressure and the air pressure are balanced. The air nozzle 7 is fixed to the upper part of the housing by a bolt 12 and sealed by a rubber packing 11. The lower end of the air bag 5 is provided with a fixed column 13 and a fixed plate 8 which are fixed on the elbow 1 of the water inlet and outlet at the lower part. The landing leg 2 of overhead tank adopts PP material injection moulding, uses elbow 1 to fix the landing leg in the overhead tank bottom. Elbow 1 adopts CPVC to mould plastics integrated into one piece, has designed the bayonet socket on the elbow, is connected with 8 joints of fixed plate, plays the effect of fixed gasbag 5. And the bottom of the external thread of the first end of the elbow 1 is provided with an extension edge which can be fixedly connected with the supporting leg 2. The elbow 1 is connected with the edge of a second connecting port 9 of the lining 3 by screw threads, and the elbow 1 is connected with a system pipeline by a loose joint 10.
The embodiment of the invention solves the problems of complexity of the conventional air bag type pressure tank in the manufacturing process, easy corrosion of the shell, easy damage of the air bag and short service life of the shell, and the shell is formed by winding the PE lining 3 after being impregnated with the glass fiber 4, so that the shell has the characteristics of pressure resistance and corrosion resistance as a whole, and is light in weight and clean and sanitary in interior. The air bag 5 is integrally formed by polyurethane materials, the sealing performance and the pressure resistance are good, the connecting parts of the air bag 5, the shell and the supporting legs 2 are fixed by bolts and bayonets, the installation is easy, and the disassembly is convenient. The whole pressure tank is simple in manufacturing process, resistant to pressure and corrosion, high in cleanliness of the PE lining 3, free of corrosion, not prone to damage due to the fact that the air bag 5 is integrally formed, and long in service life.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The utility model provides a full combined material gasbag formula overhead tank, its characterized in that, include the shell with set up in gasbag (5) in the shell, the shell includes inside lining (3) and winding set up in glass fiber (4) in the outside of inside lining (3), inside lining (3) are the PE material, inside lining (3) have first connector (6) and second connector (9), gasbag (5) are located the inner chamber of inside lining (3), and with the inner wall interval of inside lining (3) sets up, gasbag (5) are the polyurethane material, gasbag (5) integrated into one piece intercommunication is connected with air cock (7), air cock (7) are pegged graft and are sealed to be fixed in first connector (6), second fixedly connected with elbow connector (1), the first end of elbow (1) is passed through second connector (9) with the inner chamber intercommunication of inside lining (3), the second end of the elbow (1) is communicated to a pipeline.
2. The full composite material air bag type pressure tank is characterized in that the air bag (5) is integrally formed with a fixing column (13), the first end of the elbow (1) is fixedly provided with a fixing plate (8), and the fixing column (13) is fixedly inserted into the fixing plate (8).
3. The all-composite material airbag type pressure tank is characterized in that a bayonet is arranged at the first end of the elbow (1), and the fixing plate (8) is clamped with the bayonet.
4. An all-composite air bag type pressure tank as claimed in claim 2, wherein the second connecting port (9) is provided with an internal thread, the first end of the elbow (1) is provided with an external thread, and the elbow (1) and the second connecting port (9) are in threaded connection through the external thread and the internal thread.
5. An all composite material airbag type pressure tank as claimed in any one of claims 1 to 4, characterized in that the first connecting port (6) is arranged at the top of the inner liner (3), the second connecting port (9) is arranged at the bottom of the inner liner (3), the bottom of the outer shell is provided with a leg (2), and the outer shell is fixedly supported on the leg (2).
6. An all-composite material airbag type pressure tank as claimed in claim 5, wherein the second connecting port (9) is provided with an outer edge, and the supporting leg (2) is fixedly provided with a fixing sleeve which is arranged on the outer edge.
7. An all-composite airbag type pressure tank as claimed in any one of claims 1 to 4, wherein a sealing gasket (11) is arranged in the first connecting port (6), and the gas nipple (7) is fixedly connected with the first connecting port (6) and the sealing gasket (11) through a bolt (12).
8. An all composite material bladder pressure tank according to any of claims 1 to 4, characterized in that the maximum service pressure of the outer shell is 1.0MPa and the maximum service pressure of the bladder (5) is 0.2 MPa.
9. An all-composite air bag type pressure tank as claimed in any one of claims 1 to 4, wherein the distance between the air bag (5) and the inner wall of the lining (3) after being inflated is 4.5-5.5 mm.
10. A method of making an all composite airbag pressure tank as claimed in any one of claims 1 to 9, comprising: firstly, the air bag (5) is manufactured by adopting hollow blow molding and integral molding, and the air nozzle (7) is connected with the air bag (5) by adopting injection molding and integral molding; then, a lining (3) with a first connecting port (6) and a second connecting port (9) is manufactured in a hollow blow molding integrated forming mode, and glass fibers (4) are wound on the outer wall of the lining (3) to form a shell; secondly, placing and fixing the uninflated air bag (5) in the lining (3), wherein an air nozzle (7) penetrates through the first connector (6) and is fixed in a sealing way, and the elbow (1) is fixedly communicated with the second connector (9); finally, the air bag (5) is filled with pressure inert gas through an air tap (7), and the elbow (1) is connected into the pipeline.
CN202011551294.9A 2020-12-24 2020-12-24 Full-composite material air bag type pressure tank and manufacturing method thereof Active CN112682688B (en)

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JP2022573225A JP7421665B2 (en) 2020-12-24 2021-10-20 All-composite airbag type pressure tank and manufacturing method thereof
PCT/CN2021/124987 WO2022134799A1 (en) 2020-12-24 2021-10-20 Full-composite-material airbag-type pressure tank and fabrication method therefor
US17/945,061 US11988333B2 (en) 2020-12-24 2022-09-14 Bladder-type pressure tank and preparation method thereof

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US11988333B2 (en) 2024-05-21
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